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Finding the Fourth Proportional to 224,089.20, 336,125.70 and 90,965.70

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Solution

The fourth proportional to 224,089.20, 336,125.70 and 90,965.70 is: 136,445.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,089.20 : 336,125.70 = 90,965.70 : x
  2. Step 2: Convert to fraction form
    224,089.20/336,125.70 = 90,965.70/x
  3. Step 3: Cross multiply
    224,089.20x = 336,125.70 × 90,965.70
  4. Step 4: Simplify right side
    224,089.20x = 30,575,909,588.49
  5. Step 5: Solve for x
    x = 30,575,909,588.49/224,089.20
  6. Step 6: Final answer
    x = 136,445.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.